| Schedule of marketable securities |
| Schedule of marketable securities | |
| | | |
| | | |
| | | |
| | |
| | |
June
30, 2026 | |
| | |
Cost
Basis | | |
Unrealized
Gains | | |
Unrealized
Losses | | |
Fair
Value | |
| | |
| | |
| | |
| | |
| |
| Government
securities | |
$ | 13,583,000 | | |
$ | 86,000 | | |
$ | (204,000 | ) | |
$ | 13,465,000 | |
| Fixed
income mutual funds | |
| 8,039,000 | | |
| 143,000 | | |
| (92,000 | ) | |
| 8,090,000 | |
| Certificates
of deposit | |
| 752,000 | | |
| 2,000 | | |
| – | | |
| 754,000 | |
| Corporate
bonds and notes | |
| 2,027,000 | | |
| – | | |
| (19,000 | ) | |
| 2,008,000 | |
| Total
marketable securities | |
$ | 24,401,000 | | |
$ | 231,000 | | |
$ | (315,000 | ) | |
$ | 24,317,000 | |
| | |
December
31, 2025 | |
| | |
Cost
Basis | | |
Unrealized
Gains | | |
Unrealized
Losses | | |
Fair
Value | |
| | |
| | | |
| | | |
| | | |
| | |
| Government
securities | |
$ | 12,576,000 | | |
$ | 95,000 | | |
$ | (46,000 | ) | |
$ | 12,625,000 | |
| Fixed
income mutual funds | |
| 7,855,000 | | |
| 228,000 | | |
| – | | |
| 8,083,000 | |
| Certificates
of deposit | |
| 752,000 | | |
| 7,000 | | |
| – | | |
| 759,000 | |
| Corporate
bonds and notes | |
| 2,027,000 | | |
| – | | |
| (27,000 | ) | |
| 2,000,000 | |
|
Total
marketable securities | |
$ | 23,210,000 | | |
$ | 330,000 | | |
$ | (73,000 | ) | |
$ | 23,467,000 | |
| | |
| | | |
| | | |
| | | |
| | |
|